Evolution of the pseudogap state of high-T-c superconductors with doping

被引：114

作者：

Puchkov, AV

Fournier, P

Basov, DN

Timusk, T

Kapitulnik, A

Kolesnikov, NN

机构：

[1] STANFORD UNIV,EDWARD L GINZTON LAB,STANFORD,CA 94305

[2] UNIV MARYLAND,CTR SUPERCONDUCT RES,COLLEGE PK,MD 20742

[3] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

[4] INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.77.3212

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a study of the infrared properties of Bi2Sr2CaCu2O8+delta, Bi1.66Pb0.34Sr2CaCu2O8+delta, and Tl2Ba2CuO6+delta crystals at doping levels from underdoped to strongly overdoped. We calculate the frequency-dependent scattering rate 1/tau(omega, T) and study its doping dependence. While we observe a normal-state gaplike depression in 1/tau(omega, T) in the underdoped regime, it is not observed in the overdoped regime. While the high-frequency 1/tau(omega, T) is temperature independent in the underdoped regime, it scales with temperature in the overdoped regime.

引用

页码：3212 / 3215

页数：4

共 23 条

[1] ELECTRON-PHONON EFFECTS IN INFRARED PROPERTIES OF METALS [J].